MATTER AND MIXTURE





–noun
1.
the substance or substances of which any physical object consists or is composed: the matter of which the earth is made.

mixture


–noun
1.
a product of mixing.
2.
any combination or blend of different elements, kinds, qualities, etc.: a mixture of good and bad traits.


external image state.gif
Solid
In a solid the molecules are closely bound to one another by molecular forces. A solid holds its shape and the volume of a solid is fixed by the shape of the solid.
Liquid
In a liquid the molecular forces are weaker than in a solid. A liquid will take the shape of its container with a free surface in a gravitational field. In microgravity, a liquid forms a ball inside a free surface. Regardless of gravity, a liquid has a fixed volume.
Gas
In a gas the molecular forces are very weak. A gas fills its container, taking both the shape and the volume of the container.

http://www.dmturner.org/Teacher/Library/5thText/ChemPart2.htm
Questions
Q1:Sublimation is where a solid particle changes into a gas particle without turning into a liquid. true or false?
Q2:The boiling point of water would increase because when there is less pressure it is easier for the water particels to escape and go from liquid in to a gas. true or false?
Q3:When a cup of water changes from solid to liquid the particels expand taking the shape of the cup. true or false?